宫霄欢, 姜晨彦, 邱琪, 刘博, 楚瑞林, 张耀光, 俞晓, 崔鹏, 方绮雯, 吴寰宇, 郝莉鹏, 潘浩. 国际机场外航货机服务人员1起新型冠状病毒肺炎病例的分析及处置[J]. 上海预防医学, 2022, 34(4): 309-313. DOI: 10.19428/j.cnki.sjpm.2022.21470
引用本文: 宫霄欢, 姜晨彦, 邱琪, 刘博, 楚瑞林, 张耀光, 俞晓, 崔鹏, 方绮雯, 吴寰宇, 郝莉鹏, 潘浩. 国际机场外航货机服务人员1起新型冠状病毒肺炎病例的分析及处置[J]. 上海预防医学, 2022, 34(4): 309-313. DOI: 10.19428/j.cnki.sjpm.2022.21470
GONG Xiaohuan, JIANG Chenyan, QIU Qi, LIU Bo, CHU Ruilin, ZHANG Yaoguang, YU Xiao, CUI Peng, FANG Qiwen, WU Huanyu, HAO Lipeng, PAN Hao. A field epidemiological investigation and emergency response of a confirmed COVID-19 case of a foreign airline cargo service personnel in Shanghais international airport[J]. Shanghai Journal of Preventive Medicine, 2022, 34(4): 309-313. DOI: 10.19428/j.cnki.sjpm.2022.21470
Citation: GONG Xiaohuan, JIANG Chenyan, QIU Qi, LIU Bo, CHU Ruilin, ZHANG Yaoguang, YU Xiao, CUI Peng, FANG Qiwen, WU Huanyu, HAO Lipeng, PAN Hao. A field epidemiological investigation and emergency response of a confirmed COVID-19 case of a foreign airline cargo service personnel in Shanghais international airport[J]. Shanghai Journal of Preventive Medicine, 2022, 34(4): 309-313. DOI: 10.19428/j.cnki.sjpm.2022.21470

国际机场外航货机服务人员1起新型冠状病毒肺炎病例的分析及处置

A field epidemiological investigation and emergency response of a confirmed COVID-19 case of a foreign airline cargo service personnel in Shanghais international airport

  • 摘要:
    方法 对病例的基本情况、发病与诊疗、临床表现、发病前14 d内暴露史和危险因素、密切接触者(简称“密接”)、密切接触者的密切接触者(简称“次密”)、活动轨迹相关重点场所等开展现场流行病学调查。采集病例和接触人员的呼吸道标本进行实时逆转录聚合酶链反应(rRT⁃PCR)新型冠状病毒(简称“新冠病毒”)核酸检测。开展感染来源分析、接触人员管理等疫情处置。
    结果 病例于2021年7月28日出现咽痒,7月30日发热,7月31日先后2次至医院就诊,8月1日新冠病毒核酸检测结果阳性,确诊为COVID⁃19病例,于8月2日隔离治疗。病例为国际机场外航货运服务人员,7月21日、28日2次风险职业人群定期核酸筛查均为阴性,发病前14 d内未离沪,7月22—23日工作期间反复暴露于可能被新冠病毒污染的高风险环境以及接触外航机组人员,且存在个人防护不规范的情况。排查在沪密接67人、次密567人,14 d集中隔离医学观察期间均未出现症状,检测均为新冠病毒阴性。基因测序分析结果显示:病例感染的新冠病毒与近期本土疫情、我国近期输入病例之间的基因组同源性较低,与境外Delta变异株同源性高于国内Delta变异株。
    结论 上海外防输入形势依然严峻,应继续开展风险职业人群的定期核酸筛查,加强医疗机构的诊断和报告意识,切实落实对国际机场人、物、环境的防控措施,进一步提升公众的个人防护意识。

     

    Abstract:
    Objective To conduct on-site epidemiological investigation, emergency response, tracing of infection source and analysis of a confirmed COVID-19 case of a foreign airline cargo service staff member in Shanghai’s international airport, aiming to provide reference for prevention of imported COVID-19 cases under regular prevention and control of COVID-19.
    Methods A retrospective field epidemiological investigation was conducted to collect information of basic characteristics, illness onset, diagnosis, treatment, clinical manifestations, exposure history and risk factors within 14 days before onset, close contacts, close contacts of close contacts, and key places related to activity trajectories. Respiratory tract specimens of cases and contacts were collected for detection of SARS-CoV-2 by real time RT-PCR (rRT-PCR). Emergency response, including infection source analysis and contact management, was conducted.
    Results The case developed pharyngeal itch on July 28, 2021, and fever on the 30th, and went to the hospital for treatment twice on the 31st. Because his specimen was positive for SARS-CoV-2 by rRT-PCR on August 1, he was isolated and treated on August 2 and diagnosed as a confirmed case of COVID-19. The case was a foreign airline cargo service member at an international airport. The two regular nucleic acid screenings of him as a high-risk occupation on July 21 and 28 were negative. He did not leave Shanghai within 14 days before the onset of illness. During July 22nd and 23rd, he was repeatedly exposed during work to the high-risk environment that may have been contaminated by SARS-CoV-2 and had contact with the crew of foreign airlines, and the personal protection was not standardized. None of the 67 close contacts and 567 close contacts of close contacts in Shanghai showed symptoms during the 14-day medical quarantine, and the specimens of them were all negative for SARS-CoV-2 by rRT-PCR. The results of genome sequencing analysis showed that the genomic homology between the virus of the case and the one of recent domestic local epidemic and the recent imported cases was low, and the homology with the overseas Delta mutant strain was higher than that of the domestic Delta mutant strain.
    Conclusion The situation of prevention of COVID-19 import is still serious. It is necessary to conduct regular nucleic acid screening for high-risk occupational groups, strengthen the diagnosis and reporting awareness of medical institutions, effectively implement the prevention and control measures for people, objects, and environment at international airports, and further enhance the public's awareness of personal protection.

     

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